The enthalpy of neutralization of NaOH with HCl is -13.7 K cal with CH_3COOH , it is -13.2 K cal. These happens because

MHT CET Chemistry question

The enthalpy of neutralization of NaOH with HCl is K cal with , it is K cal. These happens because

(A)Acetic acid is an organic acid
(B)Acetic acid is little soluble in water
(C)Acetic acid is weak acid and requires lesser sodium hydroxide for neutralization
(D)Some heat is required to ionize acetic acid completelyCorrect

Answer: (D)

Solution

Acetic acid is a weak acid, so part of the heat of neutralization is used up in ionizing it completely, which reduces the heat evolved; (a) and (b) are

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Question ID VK-064100